It is possible that the main title of the report Marfan Syndrome is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report.
As Jenny points out, being able to lisp the alphabet song at age two has little to do with 'knowing' the alphabet. And, yes, most children learn the letters by sight and sound in kindergarten, although most are capable of learning this information sooner if diligently taught by parents or others.
In the Letter-Alphabetic writing stage, children: 1  Learn the âalphabetic principle,â which is the concept that letters represent spoken sounds. 2  Write words with consonants in all positions and all short vowel sounds present (by the end of the stage)  Know diphthongs (e.g. sh, ch, th)